■ put-side pain■ call-side painTotal payout option writers would owe at each settle price (both sides, all open interest, ×100 shares) — low settles hurt put writers, high settles hurt call writers. The minimum — 270 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)MCD open contracts per strike for Fri, Oct 16.
Open-interest change — building vs unwinding
Needs two observed snapshot days for this expiration — the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Fri, Oct 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 16
— call IV— put IVATM ≈ 22.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 16
Net dealer gamma per strike, in dollars per 1% move, assuming the standard convention (dealers long calls, short puts) — an assumption, not an observation. Above the amber flip level hedging tends to dampen moves; below it, to amplify them.
Greeks by strike · Fri, Oct 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.91
-0.03
240
0.0060
0.20
-0.04
-0.10
0.87
-0.04
245
0.0075
0.25
-0.04
-0.13
0.83
-0.05
250
0.0090
0.31
-0.05
-0.17
0.78
-0.06
255
0.0106
0.36
-0.06
-0.23
0.72
-0.06
260
0.0120
0.41
-0.07
-0.28
0.66
-0.07
265
0.0132
0.45
-0.07
-0.35
0.59
-0.07
270
0.0140
0.47
-0.08
-0.42
0.52
-0.07
275
0.0144
0.48
-0.08
-0.50
0.45
-0.07
280
0.0143
0.48
-0.08
-0.57
0.38
-0.07
285
0.0138
0.46
-0.07
-0.64
0.32
-0.07
290
0.0128
0.43
-0.07
-0.71
0.26
-0.06
295
0.0117
0.40
-0.06
-0.77
0.21
-0.06
300
0.0104
0.35
-0.06
-0.82
0.17
-0.05
305
0.0090
0.31
-0.05
-0.86
0.14
-0.04
310
0.0077
0.27
-0.04
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 41 are in the CSV. Δ per $1 of underlying · Θ per day · vega per IV point.
Stacked — layer the expirations
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.
Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.
Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.